Dental pliers.



No. 874,489. PATENTED DEC. 24, 1907.

Y G. J.- CLARK.

DENTAL PLIERS.

APPLIUATION FILED 1330;24, 1906.

WI rlvzssze .T N vz/v'ron TM/M ATTORNEYS UNITED STATES PATEN' @FFIGE.

GILBERT .T. CLARK, OF MAYVILLE, WISOQNSIN. 1

DENTAL PLIERS.

To all whom it may concern:

Be it known that I, GILBERT J. CLARK, a citizen of the United States, residing at May'ville, county of Dodge, and State ofand configuration of the two opposing bear.-

ing surfaces of the jaws of the pliers which are adapted to grasp the interior and eX-- terior surfaces of the cap or shell from which the crown is formed, whereby a single firm grip of the pliers the walls of the shell are compressed into the desired shape conforming to that of the ideally perfect tooth, where by a'much more perfect shape is given to the crown in a moments time than would be possible to otherwise produce in a great length of time by the most skilled workman when using pliers of the ordinary construction.

In carrying out my system of forming crowns I preferably use a special pair of pliers for forming 'the front or labial surface from a metallic band, be given the desiredof. the crown which conforms to the desired front surface of the tooth and anotherpair for the rear or lingual side of the tooth which conforms to the desired shape ofsuch surface, and I also preferably usev a similar pair of pliers for eachtooth whereby it is obvious that a crown may be readily made to con- 'form in all respects to the shape of the ideally perfect tooth which it is intended to replace in the shortest possible time.

My inventionpertains second to the construction of theback and end of one of the jaws of the pliers whereby the top and both sides of a crown may, as it is being formed,

Specification of Letters Patent. Application .filed December 24, 1906. Serial No. 3491299.

Patented Dec. 24, 1907.

represents a hollow metallic shell as it is formed preparatory to being. acted upon by my pliers in the process of forming a crown. Fig. 6 represents the position of the shell as it is graspedby the jaws of the pliers preparatory to being compressed to the-desired shape oneside of said shell being re resented as it a pears after it has been acte upon by the p iers. Fig. 7 re resents the vertical walls of the crown as t ey appear after they have been acted upon by the pliers. Fig. 8 is a modified form of pliers in which the back of one of the jaws is shaped to conform to the desired shape of one side of a tooth, while the opposing surfaces of the jaws are shaped to conform to the opposite side of the tooth said pliers being adapted to be used when con- 'structing a cap from a metallic band before the ends of the bands are soldered together. Fi 9 represents a band from which a crown is ormed between the jaws of a pair of pliers, shown in Fig. 8. It will-be understood that when the band is ripped between the jaws of the pliers, as indicated in Fig.9, one side of the band is given the desired shape by the action of the jaws which are brought together against it, while the opposite side of the band is given the desired shape by pressing or burnishing it against the back of the jaw when in the grip of the pliers. When the band has been thus given the desired shape it is removed from the pliers and its opposing, ends are soldered or brazed in the usualway. Figs. 10 and 11 are the opposing sides of the jaws of the liersshown in Fig. 8.

Like parts are ident' ed by the same reference figures throughout the several views.

1 and 2 represent the respective handles of the pliers and 3 and 4 the respective jaws of the pliers which are used in giving. a hollow shell or cap. 5 the desired shape to correspond with the vertical sides of an ideally perfect crown.

In using the pliers shown in Fig. 1 the jaw 3 is placed within the shell or against its inner concave surface and the vj aw 4 against its exterior surface as 'indicatedin Fig. 6 when the jaws are brought firmly together against the shell by the pressureof the operator upon the handles, wherebythe desired. shape wlll are brought to ether in like manner against whereby when the jaws are brought together .65 the opposite side of the crown, whereby both against the band 15 that portion of theband sides of. the shellv are giventhe desired sha e between' the aws 12 and 16 will as stated be asindicatedin Fig. 7, whilejthe j aws, of t e compressed nto' the desired sha e to. form pliers shown'in' Fi ljconform to the shape the abial SlClQ'Of a tooth. This emg done of;the"smaller teeth, the jaws shown in Fi s; the ends of the band are pressed b a suit:

"2, 3, 4 and6, conform to theshape of t e able burnishing tool against thebac of the larger side teeth, it being understood that jaw until they conform to the shape thereof f ar jaws to'suchtwo forms indicated are when the bandthus formed is removed and 10 provided for several formsof teeth of both. its contiguousends brazed together as pre the up er'andlower sets, whereby itis ob- .viously escribedq vious that when the shell has been formed .as hile I have shown and described instrushown in Fi 5, it can be readily and-quickly ments for producing three different forms of 'transforme into the desired shape to-prop crowns, it will of courseibe understood that 15 erly represent the tooth it intendedto reby a com 'lete set of instrumentsjsuph as deplace. scribed a the necessary crowns for a'com The pliers thus far described in F igs. 1 to 8 .plete set of teeth maybe formed'jin likemaninclusive are adapted to be used as stated-for ner. J I forming the vertical side walls only of a] -'.f .For brevity ofdescription the opposing 20 crown, it being understood thatwhen such surfaces of the jaws are referred to 1n the arts of a crown have been formed the toporclaims as male and female dies. biting surface of a crown, which has beenv Havingthus described my invention'what previously formed by the ordinary process; I-claim? as new and desire to secure by Let- 1s securedto. such sidewalls by brazing ,or, ters Patent is, 25 soldering in the ordinary manner.- The jaws 1. A pair of dental pliers comprising a set of the phers shown in Figs. 9 and 11 inclusive of operating handles and jaws pivotally conare adapted not onlyto form the wall of one nected to ether, a male die conforming in side of a crown as they are brought to ether sha e to t e vertical walls of a dental crown against the same but also serve to ho dthe an inversely conformingto the shape of the 30 band from which the crown is formed in vertical walls of a tooth, said die being lace while the opposite sides thereof are. formed integrally with or rigidly aflixed to brought together and burnished or comone ofsaid j aws, a female die conforming in pressed a amst the back of one of the jaws sha e to and adapted to register with the and there y given the required shape conma e die and also formed integrally with. or 85 forming to the desired shape of the end and rigidly"afiixed to the opposing jaw of said opposite side of the tooth. When the band pliers. has been thus acted upon, itis removed from 2. A pair of dental pliers comprising aset the pliers and the opposing ends of the band of operating handles and jaws pivotally con-' from which it is formed are soldered'to ether, nected together, a male die conforming in 40 thus formin a complete crown including the sha e to the vertical walls of a dental crown vertical wa 1S and biting surface. One of an inversely conforming to the shape of the the jaws 3 shown in Fig. 1 is provided with a vertical walls of a tooth,-. said die being convex surface 6 while the opposite jaw 4 is formed integrally with or rigidly aflixed to provided with a concave surface 7 which conone of said jaws, a female die conforming in orms in shape to and is adapted to closely shape to and adapted to register with the fit against the'convex surface of the jaw 3. ma e die and also formed integrally with or The jaw 3 shown in.Fig. 3 is provided with rigidly ailiared to the opposing jaw of said convex surfaces 8, 8,"and concave surface 9, phers, the back of one of said jaws bein while the jaw 4, shown in Fig. 4, is provided sha ed to conformto one side of the vertica with concave surfaces 10, 10 which are adapt-' wa s of a dental crown, whereby one side of ed to conform in shape to the surfaces 8, 8 of a metallic band held by said pliersmay be 116 n Fig. 3 and said jaw-l is also provided with a given the desired shape by the action of the convex surface 11 which is ada ted to contwo opposing jaws and said band simultane form in shape to the concave su ace 9 shown ously held by said jaws, while the opposite 55 in Fig. 3, whereby as said jaws are brought side of the metallic band is pressed and bur to ether against the metallic shell, such shell nished to conform to the back of the crown- 1'20 wi 1 be pressed by the convex surface of one shaped jaw; all-substantially as and for the of the jaws into the concave surface of the purpose specified. other and thereby given the desired shape. In testimony whereof I afiiX mysignature 60 In Figs. 8 and 9 the back ofthe jaw 12 is in the presence oft-we witnesses.

shaped to conform to the shape of one side of v GILBERT J. CLARK.

a tooth, as shown at 13 in said figures, while Witnesses 3 the opposite side 14 of said jaw is shaped to JAS. B. ERWIN,. conform to. the opposite side of a tooth CHAS. L. OLAsoN. 

